Waste water treatment system
阅读：388发布：2024-01-17
专利汇可以提供Waste water treatment system专利检索，专利查询，专利分析的服务。并且The invention represents a new concept in liquid processing particularly in sewage treatment utilizing air, oxygen or a carrier fluid with some liquid or gas disinfectant as an attenuator or anaerobic biota, for generalized disinfection, for aeration, or for oxygenation. Essentially, unique designs and/or processes are incorporated into the conventional settling tanks associated with sewage treatment, as well as in the bioprocesses, activated sludge or trickling filter operations. The structural improvements in settling reduce velocity, inhibit boundary layer separation and act to suppress mixing of the sewage to greatly enhance solid and fluid separation, while the bioprocessing operations, the key is to improve efficiency of the liquid-gas exchange whereby much better oxygen contact is achieved. The liquid-gas exchange feature utilizes a high momentum exchange under turbulent flow conditions in a hydraulic pressure gradient to achieve intimate mixing of the desired gas in the fluid so as to achieve the desired very reliably and efficient liquid-gas exchange.，下面是Waste water treatment system专利的具体信息内容。
1. A system for pollution suppression which comprises a primary sedimentation tank, means to inject raw waste effluent into the tank for settling action, a digester, means to withdraw sludge from the primary sedimentation tank and feed it to the digester, a primary bioprocessing tank, means to feed the effluent from the primary sedimentation tank to the primary bioprocessing tank, a secondary sedimentation tank, means to deliver the effluent from the primary bioprocessing tank to said secondary sedimentation tank, a disinfection tank, means to add a disinfectant to the disinfection tank, and means for delivery of the effluent from the secondary sedimentation tank to said disinfection tank and discharging fully processed effluent therefrom, first injection means for selectively injecting an oxygen containing fluid under high momentum exchange conditions into the effluent at any point in the pollution suppression system prior to said disinfection tank, and means to selectively inject an oxygen containing gas into effluent from said disinfection tank to maintain a high dissolved oxygen content in said disinfected effluent.
2. A system according to claim 1 where the fluid is an oxygen containing gas, and which includes means to inject a disinfectant into the influent to the disinfection tank under high momentum exchange conditions.
3. A system according to claim 2 where the disinfectant is chlorine and said chlorine is injected as a liquid solution.
4. A system according to claim 1 where the means for selectively injecting is a short tube within the system flow, said tube having a reduced diameter sharp angled entrance, and a length equal to at least several diameters of the entrance, and the fluid is injected into the effluent as it flows through the short tube.
5. A system according to claim 1 which includes means to maintain the effluent under a pressure head throughout its flow path to increase the level of gas soluability thereinto.
6. A system according to claim 4 including a plurality of short tubes located throughout the flow path of the effluent in the system, and at least two short tubes bundled together in a reversal effluent flow path where the bundled short tubes have a combined length oF at least ten of their hydraulic diameters.
7. A system according to claim 1 including a collection trough beneath the bioprocessing tank, means to inject a suitable sedimentating agent into the effluent collected in the trough, means subsequently injecting a flocculating agent into the effluent under high momentum exchange conditions to interreact with the sedimentating agent.
8. A system according to claim 1 including means to effect nitrogeneous oxygen demand reduction in the system.
9. A system for pollution suppression according to claim 1 where said first injection means communicates with the influent of said primary sedimentation tank.
10. A system for pollution suppression according to claim 1 which includes means to feed supernatant from said digester back to said primary sedimentation tank and where said first injection means communicates with said digester supernatant.
11. A system for pollution suppression according to claim 1 which includes means to recirculate a portion of the effluent from said primary bioprocessing tank to said primary sedimentation tank and where said first injection means communicates with said recirculated effluent.
12. A system for pollution suppression according to claim 9 which includes means to feed supernatant from said digester back to said primary sedimentation tank and where said first injection means communicates with said digester supernatant.
13. A system for pollution suppression according to claim 9 which includes means to recirculate a portion of the effluent from said primary bioprocessing tank to said primary sedimentation tank and said first injection means communicates with said recirculated effluent.
14. A system for pollution suppression according to claim 10 which includes means to recirculate a portion of the effluent from said primary bioprocessing tank to said primary sedimentation tank and said first injection means communicates with said recirculated effluent.
15. A system for pollution suppression according to claim 14 where said first injection means communicates with the influent of said primary sedimentation tank.
16. A system for pollution suppression according to claim 1 wherein said first injection means communicates with the inlet of said secondary sedimentation tank.
17. A system for pollution suppression according to claim 1 including means for recirculating a portion of the effluent from said secondary sedimentation tank to said bioprocessing tank and said first injection means communicating with said means for recirculating.
18. A system for pollution suppression according to claim 1 having a secondary bioprocessing tank, means for recirculating clarified liquor from said secondary sedimentation tank to said secondary bioprocessing tank and said first injection means communicating with said means for recirculating clarified liquor.
19. A system according to claim 2 where the disinfectant is ozone in an oxygen containing carrier gas.
20. A system for pollution suppression according to claim 7 wherein said sedimentating agent is selected from the class consisting of aluminum chloride and ferric chloride.
21. A system for pollution suppression according to claim 7 including means for injecting and mixing said sedimentating agent.
22. A system for pollution suppression according to claim 1 which contains a trough for collecting a portion of the effluent and the addition of a suitable sedimentating agent into said effluent collected in said trough.
23. A system for pollution suppression according to claim 22 wherein said trough is located beneath said primary bioprocessing tank.
24. A system for pollution suppression according to claim 1 including means to add a polyelectrolyte resin.
25. A system for pollution suppression according to claim 24 including means for injecting and mixing said polyelectrolytic agent.
26. A system for pollution suppression according to claim 25 wherein said polyelectrolytic injection mixing Means is a short tube.
27. A system for pollution suppression according to claim 24 wherein said polyelectrolytic agent is selected from the class of anionic polymers, cationic polymers and nonionic polymers.
28. A system for pollution suppression according to claim 27 which includes means to add cationic polymers to flocculate the sludge.
29. A system for pollution suppression according to claim 7 including means to add the polyelectrolyte a short time after the addition of said sedimentating agent.
30. A system for pollution suppression according to claim 29 wherein said polyelectrolyte is an anionic polymer.
31. A system for pollution suppression according to claim 29 wherein said means to add the polyelectrolyte makes said addition from about 1 1/2 to about 3 1/2 minutes after the addition of said sedimentary agent.
32. A system for pollution suppression according to claim 22 which includes means to add a polyelectrolyte a short time after the addition of said sedimentating agent.
33. A system for pollution suppression according to claim 32 wherein said polyelectrolyte is added through a short tube.
34. A system for pollution suppression according to claim 33 wherein said short tube is located in a pipe downstream from said trough.
35. A system for pollution suppression according to claim 7 which includes means to add a sedimentating agent to the influent of a secondary sedimentation tank.
36. A system for pollution suppression according to claim 35 which includes means to add a polyelectrolyte resin to the influent of said secondary sedimentation tank.
37. A system for pollution suppression according to claim 36 which includes means to add a polyelectrolyte resin in said primary sedimentation tank.
38. A system for pollution suppression according to claim 35 which includes means to flocculate, complex and sediment, or complex and precipitate pollutants selected from the class consisting of oil and greases.
39. A system for pollution suppression according to claim 37 which includes means to flocculate, complex and sediment, or complex and precipitate pollutants selected from the class of oils and greases.
40. A system for pollution suppression which comprises a primary sedimentation tank, means to inject raw waste effluent into the tank for settling action, a digester, means to withdraw sludge from the primary sedimentation tank and feed it to the digester, a primary bioprocessing tank, means to feed the effluent from the primary sedimentation tank to the primary bioprocessing tank, a secondary sedimentation tank, means to deliver the effluent from the primary bioprocessing tank to the secondary sedimentation tank, a disinfection tank, means to add a disinfectant to the disinfection tank, and means to deliver the effluent from the secondary sedimentation tank to the disinfection tank and discharging fully processed effluent therefrom, first injection means for selectively injecting a fluid under high momentum exchange conditions into the effluent at any point in the pollution suppression system prior to said disinfection tank and means to selectively inject an oxygen containing gas into the inlet of said primary sedimentation tank.
41. A system for pollution suppression which comprises a primary sedimentation tank, means to inject raw waste effluent into the tank for settling action, a digester, means to withdraw sludge from the primary sedimentation tank and feed it to the digester, a primary bioprocessing tank, means to feed the effluent from the primary sedimentation tank to the primary bioprocessing tank, a secondary sedimentation tank, means to deliver the effluent from the primary bioprocessing tank to the secondary sedimentation tank, a disinfection tank, means to add a disinfectant to the disinfection tank, and means to deliver the effluent from the secondary sedimentation tank to the disinfection tank and discharging fully processed efflueNt therefrom, first injection means for selectively injecting a fluid under high momentum exchange conditions into the effluent at any point in the pollution suppression system prior to said disinfection tank, and said means for injecting fluid having a short tube.
42. A system for pollution suppression according to claim 41 wherein said short tube is a sudden contraction within the system flow.
43. A system for pollution suppression according to claim 42 wherein said sudden contraction occurs at a transition from a large conduit to a smaller conduit.
44. A system for pollution suppression according to claim 42 wherein the length of said short tube is equal to at least several diameters of the entrance.
45. A system for pollution suppression according to claim 44 wherein a small injection mixing tube 153 extends coaxially into said short tube.
46. A system for pollution suppression according to claim 45 wherein said small injection tube is located approximately 1/2 to 1/2 diameters from the entrance of said short tube.
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